iFrotz is an Frotz Z-Machine interpreter for iPhone.

Changes:

Smarter Auto-scrolling.
Bug fixes (fix periodic hang when selecting a new game after aborting, fix garbled text printing right after game auto-restore, misc. status line bugs).
Allow cursor in upper window (Bureaucracy).
Allow games to erase screen.
Support Trinity and AMFV by pretending screen width is 80 columns when these games are detected.

http://code.google.com/p/iphonefrotz/